Telescope by Galileo (replica)
1610; 1923
Beyer-Garratt South African Railways Locomotive
1929
Gecophone Crystal Detector Radio Set No. 1, 1923
1923
Mousetrap Camera
1834-1836
Model of the "Planet" Locomotive
1830 (original); 1967 (model)
Radium teletherapy apparatus, the radium 'bomb'
1925-1930
Barber-Colman knotter
circa 1925
Replica of Daguerre-Giroux camera
1839 (original); circa 1988 (replica)
Marconi-Sykes magnetophone
1923
BBC 'Bijou' Crystal Set Receiver Type 6
1923-07
Experimental television receiver used by JL Baird in demonstration, made 1925-1926
1925-1926
Petrol locomotive
1925
Freud electronic laughing ball
1990-96
Baird Phonovision disc, 1927-1928
1927-1928
Replica of the first Morse telegraph, 1835
1934
Desk telephone transmitter and receiver (sectioned), 1926.
1926
Elm Street Mill Cross-Compound Steam Engine
1926
Roving frame
1927
Siemens Neophone telephone, 1929
1929
Model steam locomotive LMS 'Royal Scot'
1927
Framed poster advocating vaccination against smallpox
1923
Vitaphone disc for sound film 'Sunny' (1930, USA)
1930
Model of Great Central Railway "Atlantic" Express Locomotive
1903 (original); 1982 (model)
Amplion loud speaker with wooden horn, 1925
1925
Three-valve radio receiver, 1922-1925
1922-1925
Primax moving iron loudspeaker, 1924-1927
1924-1927
Replica of Morse's second model of telegraphy apparatus, 1934
1934
Gold amulet in the form of a cobra
2000-100 BCE
Earth thermometer with bent stem, c. 1925.
1925
Crystal radio receiver
circa 1923
Volume 1 No. 1 of "Television" monthly magazine, 1928
1928
Savoy Hill 'Meat Safe' microphone stand
1923
Addac adding machine
1926
Neolithic flint scraper
4000-2001 BCE
Working Model locomotive
1922
Thomas Lewis’ electrocardiograph
1930
Novelty model
1955; 1830
Marconi-Sykes Magnetophone microphone
1923
Vaccination set, London, England, 1925-1928
1925-1928
Portable thermometer screen
1925
Novelty crystal radio set, 1925-1930
1925-1930
Marconi-Reisz 'Marble' Microphone
1927-30
Selector super portable broadcast receiver, 1925-1930
1925-1930
Popular Wireless no. 1 vol. 1, 1922
1922
Radio Times volume 1 No. 1, 1923
1923
Train indicator board, Great Western Railway
1930
Brownie crystal receiver and pair of Lissen headphones, 1924-1927
1924-1927
Infant death rate and income
1926-1928
Chain of Office
1927
National Diesel Engine
1928